| 摘要 |
PURPOSE:To produce small quantity of many sizes, to save the labor for changing the roll and to effectively roll with the line of tandem mill by steplesswise executing the adjustment of the web thickness and the flange thickness while keeping the dimension of outer width constant in the same series on the hot rolling of channel with the continuous case slab as the stock. CONSTITUTION:The channel steel of different thickness with the constant dimension of outer width in the same series is manufactured by cooperating a two hight roughing mill BD, if necessary, two high shaping mill RH and universal roughing mill RU, and composing a U-bending machine VE having a vertical roll which forms the flange part P for shaping the end part of flange on the circumferential surface and the horizontal roll, universal finishing mill FU having a horizontal roll which presses the inner side surface of flange and the web, horizontal roll which presses the web outer side surface and right and left vertical rolls which press the outer side surface of the flange. |
